[s-cars] electric diff-lock switch?

[Scott Justusson]

Dennis
Not clear on what you are trying to do.  If it's just to add an additional on/off switch, you only need to put a momentary contact switch in parrallel with the stock one you already have.  Many years ago, I rigged 2 of these electro-pneumatic switches with computer boxes up to my urq center and rear diffs.  The trigger switch activation is momentary on>momentary off (with blue white speed sensor wire disabled) so you only need to find the stock rear diff switch wires that have momentary continuity, and add as many additional parallel triggers you desire.  The diff computer will light up the triangle, and the diff switch will light up the actual lock indicator once locked.  BTDT

http://forums.audiworld.com/picture.php?albumid=37342&pictureid=46522

HTH

Scott J

 

 

 

-----Original Message-----
From: dgraber460 <dgraber460 at aol.com>
To: quattro <quattro at audifans.com>; s-car-list <s-car-list at audifans.com>
Cc: bhowell <bhowell at rmi.net>; hackl911 <hackl911 at comcast.net>; seiche <seiche at cellport.com>; petergg <petergg at quasar.dimensional.com>; dlawson <dlawson at ball.com>
Sent: Thu, Feb 27, 2014 5:21 pm
Subject: [s-cars] electric diff-lock switch?



Has anyone ever tried to wire the elec vacuum switch from under the rear seat of 
the 200 TQ cars (part # 893-919-173) to be a remote electrical switch for the 
rear diff?
Every attempt I've made at powering it up, doesn't activate it. I have the 
wiring diagram from the 92-97 Bentley, but just can't get my non-sparky logic to 
make it work. Is there too much computer nanny circuitry in it to allow it to be 
used this way?
TIA


Dennis 
Denver